HANOI, Vietnam — When local police arrived in riot gear to evict the Vuon clan, family members were ready with homemade land mines and improvised shotguns. In a guerrilla-style ambush reminiscent of a Vietnam War battle, they wounded six officers.

But instead of drawing public condemnation, last month's rare violence by fish farmers trying to hold onto leased land in the northern port city of Hai Phong has made a national hero of family ringleader Doan Van Vuon and ripped open a debate about heavy-handed seizures by local governments.

Though Vuon and three of his kin remain under arrest for their role in the attack, retired military generals and a former president have weighed in on his behalf.
The case has attracted so much attention that Prime Minister Nguyen Tan Dung ordered an investigation, ruling Friday that the eviction was illegal and those who ordered it should be punished. He also encouraged local authorities to renew the family's land lease.